New Castle County police say Veronica Miller, an unlicensed daycare provider, would lock the twins in a closet while she drove to another location to pick up several other children she also watched.

After getting a tip, police went to Miller's apartment on Thursday afternoon.

A maintenance worker let officers inside the apartment, where they found a chair wedged in the hallway between the closet and bathroom door. Police say when they opened the door, they saw the twin toddlers sleeping on the floor with pillows and blankets.

Police say this wasn't the first time this had happened and believe Miller had been doing this since mid-February.

The twins were in good health.

The Division of Family Services is helping police with the investigation.